Does DB Size Decrease When I Delete A Huge Table ??

Jan 15, 2004

Hi,
My DB size (Right click on DB Name, Data Files tab, Space Allocated field) was 10914 MB.

I delete a huge table (1.2 million records * 15 columns).
I checked the db size again. It didnt change.
Shouldn't it decrease because I delete a huge table ??

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I have the next question, and i would like to hear what do you thinkabout, and if is there a better solution for "my problem"here is the question, I have a huge table with 60GB of data (imagefiles). The problem happen always when i try to ALTER the structure ofthe table. For example I change a field char(3) to char(4)...thesqlserver then performs the "alter table" command...that must besomething similar than "insert into the new table + drop the actualtable" and for that I need about 60GB o space for my LOG file, andtakes hours to complete the operation.Is this the only way to alter a single field in my table??I would like to heard you opinions...Thanks..ALberto

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Hi Everyone,



We have a large test database with million of records for more than company site Code. Sometime we want to refresh the data of that database for one or more site Codes.

In order to do that I have to delete all records of the site code we want to refresh on the test database first then copy a new set of data from production database over. Since we refresh data based on the site code therefore I have to use the Delete command instead of Truncate.

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FYI: The Recovery model of this database is Simple


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Hey Guys

I have meet the same problem, too.

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the db real size about 114 MB.

The primary key size is nchar(6).

When I use RDA pull, I found that the primary

key in the PDA disappear. So, It took a long time

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But when I delete some rows to 680,000 rows of data.

After I pull, The primary key can pull from the SQL Server.

PS: I didn't change any code. Just delete some rows.

Is that SQL-Mobile's bug??



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2.If I use query analyzer to add primary key it works! so strange!!

3.Pull process return "S_OK".

4.After Pull process finished, the db connection still alive. It seems not like

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5.Local Connection String:"Data Source='%s\%s';SSCEatabase Password='%s';SSCE:Encrypt Database='true';SSCE:Max Database Size=384;SSCE:Temp File Max size=384;SSCE:Temp File Directory=%s"



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Hi

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Use Tax = 10%
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same calculation for all the costs and then total cost with Sales tax = Cost 1 + A , Cost 2 + A and so on..
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So there are around 14 new fields required to save Sales Tax amt for each cost, another 14 new fields to store Cost with Sales Tax, Cost with Use tax. So that increases the table size.
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I was wondering which is a better approach out of the below 3:
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Your help is greatly appreciated.
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Jan 24, 2008

Hi

I have a table (Sql server 2000) which has 14 cost columns for each record, and now due to a new requirement, I have 2 taxes which needs to be applied on two more fields called Share1 and share 2
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Sales tax = 10%
Use Tax = 10%
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Share2 = 40%

So Sales tax Amt (A) = Cost1 * Share1 * Sales Tax
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same calculation for all the costs and then total cost with Sales tax = Cost 1 + A , Cost 2 + A and so on..
and total cost with Use tax = Cost1 +B, Cost 2 +B etc.

So there are around 14 new fields required to save Sales Tax amt for each cost, another 14 new fields to store Cost with Sales Tax, Cost with Use tax. So that increases the table size.
Some of these fields might be used for making reports.

I was wondering which is a better approach out of the below 4:
1) To calculate these fields dynamically while displaying them on the User interface and not save in DB (while making reports, again calculate these fields dynamically and show), or
2) Add new formula field columns in database table to save each field, which would make the table size bigger, but reporting becomes easier.
3) Add only those columns in database on which reports needs to be made, calculate rest of the fields dynamically on screen.

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Your help is greatly appreciated.
Thanks

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Hello:
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Background:
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Anyway, because it needs to be cross-DBMS capable, the constraints are that the system used must work for the lowest common denominator....ie, a 'recipe' of steps that will work on all DBMS's.

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Tables are:

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The 2nd table is Broker_Rates which also has a BID table.

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